Affiliation: | 1. GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage SG1 2NY, UK;2. GlaxoSmithKline, Upper Merion, 709 Swedeland Road, King of Prussia, PA 19406, USA;3. GlaxoSmithKline, New Frontiers Science Park, Harlow CM19 5MW, UK |